Mud hog pump is used to circulate oil drilling mud on a drilling rig at high pressure. Drilling fluid or oil drilling mud is circulated down through the drill string, to help cool, lubricate and clean the drill head, and back through the annulus at high pressures. The drilling mud is also used to suspend and carry out drill cuttings from the drill head as it is brought in and out of the hole.
There are many types of mud pumps, and the classification methods are different. There are roughly the following types:
According to numbers of cylinders, it is divided into single cylinder mud pump, duplex mud pump and triplex mud pump.
According to the number of times a piston reciprocates in a cylinder to inhale or discharge liquid once, it is divided into sing-acting pump and double-acting pump.
According to the layout of cylinders and their position, there are horizontal pumps, vertical pumps, v-type pumps and star pumps.
According to the piston type, it is divided into piston pump, plunger pump and so on.
According to different driven method, it is divided into diesel mud pump and electric mud pump.It depends on fuel or energy which is available on around area of drilling rigs.